netif_get
.netif_get = cs_get,
.netif_get = efinet_get,
return (*((struct netif*)desc->io_netif)->nif_driver->netif_get)
n = netif_get(d, eh, len, tleft);
ssize_t netif_get(struct iodesc *, void *, size_t, saseconds_t);
if (drv->netif_get == NULL)
rv = drv->netif_get(desc, pkt, len, timo);
int (*netif_get)(struct iodesc *, void *, size_t, saseconds_t);
.netif_get = efinet_get,